Not receiving data in development tree

[key2peace]

HW: Raspberry Pi Zero 2
OS: Raspian Bookworm
Python: Python 3.11.2 (main, Mar 13 2023, 12:18:29) [GCC 12.2.0] on linux

This is the connection code I currently have:

phoneCreds = CredentialsManager()
phoneCreds.add(
    username= data['voip_extension'],
    password=data['voip_pass'],
    user=data['voip_user'],
)

phoneParms = VoIPPhoneParameter(
    server=data['voip_host'],
    port=int(data['voip_port']),
    user=data['voip_extension'],
    credentials_manager=phoneCreds,
    call_class=answerPhone,
    transport_mode=TransportMode.UDP,
    bind_ip = myIp,
)
            
phone = VoIPPhone(phoneParms)
phone.start()

In wireshark, I do see the REGISTER call, and I do see the PBX (yes 3CX, that is what I am trying to get to run as you know) sending back a 407, however, in debug, I do no see it being received, nor being followed up. This is what I see (being repeated a couple of times until threshold is reached:

SENT:
REGISTER sip:10.0.0.10:5060 SIP/2.0

Headers:
Via: [{'type': 'SIP/2.0/UDP', 'address': ('10.0.0.32', 5060), 'branch': 'z9hG4bK4eb26dfef4524e2a995c578d8'}]
From: {'raw': '"199" <sip:[email protected]:5060>;tag=a2b9260c', 'tag': 'a2b9260c', 'uri': 'sip:[email protected]:5060', 'uri-type': 'sip', 'user': '199', 'password': '', 'display-name': '199', 'host': '10.0.0.32', 'port': 5060}
To: {'raw': '"199" <sip:[email protected]:5060>', 'tag': '', 'uri': 'sip:[email protected]:5060', 'uri-type': 'sip', 'user': '199', 'password': '', 'display-name': '199', 'host': '10.0.0.10', 'port': 5060}
Call-ID: [email protected]:5060
CSeq: {'check': 1, 'method': 'REGISTER'}
Contact: {'raw': '<sip:[email protected];transport=UDP>;+sip.instance="<urn:uuid:12569137-FCDC-47FE-8992-28FE4419AEEF>"', 'tag': '', 'uri': 'sip:[email protected]', 'uri-type': 'sip', 'user': '199', 'password': '', 'display-name': '', 'host': '10.0.0.32', 'port': 5060}
Allow: ['INVITE', 'ACK', 'BYE', 'CANCEL', 'OPTIONS', 'NOTIFY']
Max-Forwards: 70
Allow-Events: org.3gpp.nwinitdereg
User-Agent: pyVoIP 2.0.0a1
Expires: 120
Content-Length: 0

Body:

Raw:
b'REGISTER sip:10.0.0.10:5060 SIP/2.0\r\nVia: SIP/2.0/UDP 10.0.0.32:5060;branch=z9hG4bK4eb26dfef4524e2a995c578d8\r\nFrom: "199" <sip:[email protected]:5060>;tag=a2b9260c\r\nTo: "199" <sip:[email protected]:5060>\r\nCall-ID: [email protected]:5060\r\nCSeq: 1 REGISTER\r\nContact: <sip:[email protected];transport=UDP>;+sip.instance="<urn:uuid:12569137-FCDC-47FE-8992-28FE4419AEEF>"\r\nAllow: INVITE, ACK, BYE, CANCEL, OPTIONS, NOTIFY\r\nMax-Forwards: 70\r\nAllow-Events: org.3gpp.nwinitdereg\r\nUser-Agent: pyVoIP 2.0.0a1\r\nExpires: 120\r\nContent-Length: 0\r\n\r\n'
REGISTERATION ERROR: Waited 30 seconds but the server is still TRYING or has not responded.
New register thread

and eventually:

DEREGISTERATION ERROR: Waited 30 seconds but the server is still TRYING or has not responded.
Error unpacking data, only using header: not enough values to unpack (expected 2, got 1)
DEREGISTERATION ERROR: [Errno 9] Bad file descriptor
Exception in thread SIP Register CSeq: 3:
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/SIP/client.py", line 1405, in __receive
    response = SIPMessage(conn.recv(8128, self.register_timeout))
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/sock/sock.py", line 88, in recv
    data = self._udp_recv(nbytes, timeout, peak)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/sock/sock.py", line 144, in _udp_recv
    raise TimeoutError()
TimeoutError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/SIP/client.py", line 1288, in register
    registered = self.__register()
                 ^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/SIP/client.py", line 1332, in __register
    response = self.__receive(conn)
               ^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/SIP/client.py", line 1410, in __receive
    raise TimeoutError(
TimeoutError: Waited 30 seconds but the server is still TRYING or has not responded.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.11/threading.py", line 1038, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.11/threading.py", line 1394, in run
    self.function(*self.args, **self.kwargs)
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/SIP/client.py", line 1309, in register
    self.fatal_callback()
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/VoIP/phone.py", line 313, in fatal
    self.stop(failed=True)
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/VoIP/phone.py", line 306, in stop
    self.sip.stop()
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/SIP/client.py", line 239, in stop
    self.deregister()
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/SIP/client.py", line 1212, in deregister
    deregistered = self.__deregister()
                   ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/SIP/client.py", line 1234, in __deregister
    conn = self.send(first_request)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/SIP/client.py", line 250, in send
    return self.s.send(request.encode("utf8"))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/sock/sock.py", line 474, in send
    conn.send(data)
  File "/usr/local/lib/python3.11/dist-packages/pyVoIP/sock/sock.py", line 68, in send
    self.sock.s.sendto(data, addr)
OSError: [Errno 9] Bad file descriptor

[tayler6000]

That is strange. pyVoIP has not been designed to connect to proxies yet so I would expect registration to fail, but I also would expect it to debug that a 407 was received.

Code

def __register(self) -> bool:
      ...
     elif response.status == SIPStatus(407):
        # Proxy Authentication Required
        # TODO: implement
        debug("Proxy auth required")
    ....

Per the above code, you should at least be seeing that.

Maybe call phone.sip.s.get_database_dump(), this should tell you if pyVoIP is mistakenly thinking the 407 is from a different dialog.

Also, if 3CX is an open source proxy, could you link it here? I've been wanting to implement proxy support for a while but haven't had a proxy server to test against.

[key2peace]

well, the issue is, I even tried to add debugs in my changes to debug the response it gets, from the register, however, that returns nothing (which is why I resorted to wireshark to see if it is getting back anything which it does), but pyVoip kinda acts like it is receiving nothing at all

[key2peace]

3cx is surely NOT an open source proxy, I already made some changes to the code in order to attempt to get proxy authentication to work. All it requires is deal with 401 and 407 the same way and #213 ensuring it uses the correct credential pair (username for 401, user for 407),

I kinda did it already for the master tree , which I actually got to connect to 3cx using proxy-authentication, but you told me to work on dev 😈 luckily I kept a diff pyVoIP.diff.txt for master (which also fixes some deprecation warnings)

[key2peace]

#228 fixes my issues in regards to this